Letter to Yale University Press, January 28, 1913
Letter to Yale University Press, March 17, 1913
Letter to Yale University Press, March 27, 1913
Letter to Yale University Press, November 20, 1913
Letter to A. Frederick Bradshaw, December 24, 1918
Letter to A. Frederick Bradshaw, January 31, 1919
Letter to A. Frederick Bradshaw, July 24, 1919
Letter to A. Frederick Bradshaw, July 24, 1919
Letter to A. Frederick Bradshaw, October 20, 1918
Letter to A. Lawrence Lowell, April 3, 1915